06 Feb media piece. A researcher
PSY520 Graduate Statistics Week 7 Discussion DQ1 Review the three “Non-parametric” test videos in the Calculations section of the “Statistics Visual Learner” media piece. A researcher is examining preferences among four new flavors of ice cream. A sample of n = 80 people is obtained. Each person tastes all four flavors and then picks a favorite. The distribution of preferences is as follows. Do these data indicate any significance preferences among the four flavors? Test at the .05 level of significance. Ice Cream Flavor A B C D 12 18 28 22 DQ2 Is it true that parametric tests are generally more powerful than nonparametric tests? If so, give two reasons why you might choose to use a nonparametric test instead of a parametric test.
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